A sapphire and diamond cluster ring, four claw set with a central cushion cut blue sapphire of known weight 1.18 carats, surrounded by a double row of brilliant and marquise cut diamonds. E stimated total diamond weight 0.84 carat. Platinum. Weight 6.80 grams. Size Q. Accompanied by Gem Research Japan Inc. Gem identification report Number: AR-011698-01, dated stating Natural blue corundum, no evidence of heating